---
title: Download sRaw- Specific Airway Resistance
description: This document covers specific airway resistance (sRaw), how it is measured, its applications, and the advantages and limitations of it.
---

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# Download

Specific Airway Resistance (sRaw)

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![vivoFlow](https://emka.scireq.com/hs-fs/hubfs/Plethysmography%20(vivoFlow)/vivoFlow.png?width=132&name=vivoFlow.png)

Plethysmography is a widely used technique to assess breathing parameters in conscious and spontaneously breathing animals. Additional outcomes provide deeper insight into lung function, such as two validated indexes representative of airflow obstruction: EF50 (flow at mid-tidal expiratory volume) and sRaw (specific airway resistance) are derived. 

**This document discusses:**

- **Specific airway resistance (sRaw)**
- **How sRaw is measured **
- **Mathematical and physiological description **
- **Advantages and limitations **
- **Review of applications and publicationsusing sRaw **

 

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